内部包含了各种滤波器的设计，并附上了必要的程序说明。

本文主要阐述了DTMF的原理及如何在MATLAB上产生DTMF信号，主要涉及到电话拨号音合成的基本原理及识别的主要方法，利用 MATLAB 软件以及 FFT 算法实现对电话通信系统中拨号音的合成与识别。并进一步利用 MATLAB 中的图形用户界面 GUI 制作简单直观的模拟界面。 能够利用矩阵不同的基频合成 0 － 9 不同按键的拨号音，并能够对不同的拨号音加以正确的识别，实现由拨号音解析出电话号码的过程，完成对电话拨号音系统的简单的实验仿真。-This paper described the principle and how DTMF in MATLAB to generate DTMF signals, mainly related to the telephone dial tone of the basic principles of synthesis and identification of the main methods, the use of MATLAB software and the FFT algorithm on the telephone communication system dial tone Synthesis and Recognition . And further the use of MATLAB in the production of graphical user interface simple and intuitive GUI interface simulation. Able to take advantage of matrix synthesis of different fundamental frequency 0- 9 different keys of the dial tone and be able to different dial tone to be the correct identification, the dial tone from a telephone number to resolve the process of completion of the telephone dial tone system, a simple experiment simulation

网格编码调制的源程序,信号在高斯信道下实现-Trellis coded modulation source, the Gaussian signal channel under

用verilog实现的epp与sram通信的程序-epp communicate with sram in verilog

motorola首席技术官的关于硬件系统的软件开发全过程的文档-on the hardware system software development process documentation

这是modbus的应用。觉得这讲的很清楚，希望对大家有所帮助。-This is Modbus applications. Think it said very clearly that we want to be helpful.

用于实现单目标跟踪的仿真。采用单传感器单目标的方式，介绍了基本的数据关联方法。-Used to achieve single-target tracking simulation. Single-sensor single-objective way to introduce the basic method of data association.

这是我收集的几个通信基础理论的Matlab仿真实现，包括bpsk、qpsk、ofdm以及信号衰减和延迟的仿真。尽管不是我本人原创，但比较都经典。文件为*.m格式-This is my collection of several communications infrastructure theory Matlab Simulation, including BPSK, QPSK, and the OFDM signal attenuation and delay in the simulation. Although it was not my original, but more are classics. M*. document format

Dialogic D41/E语音卡 的一个应用源代码--Source code of Dialogic D41/E voice_card`s application

program to trasmit data to a TI92 with the TI Graph-Link

AT命令集，GPRS模块开发必备，包含2个pdf，一中文，一英文，可互相对照阅读-AT command set, GPRS module development necessary, including the two pdf, one Chinese, one English, can be read against each other